Dispersoid reinforced alloy powder and method of making

Anderson, Iver E; Terpstra, Robert L

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A - human necessities
A01 - agriculture
A21 - baking
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B03 - separation of solid materials using liquids or using pneumatic tables or jigs
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Title: Dispersoid reinforced alloy powder and method of making

Abstract

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. Bodies made from the dispersion strengthened solidified particles exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures.

Inventors:: Anderson, Iver E; Terpstra, Robert L

Issue Date:: Tue Oct 21 00:00:00 EDT 2014

Research Org.:: Iowa State Univ., Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1160271

Patent Number(s):: 8864870

Application Number:: 13/506,683

Assignee:: Iowa State University Research Foundation, Inc. (Ames, IA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F2009/0888 - {casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control}
B22F2009/0896 - {particle transport, separation
B22F2201/02 - Nitrogen
B22F2201/03 - Oxygen
B22F2201/11 - Argon
B22F2201/30 - Carburising atmosphere
B22F2207/00 - Aspects of the compositions, gradients
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F9/082 - {atomising using a fluid

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C1/056 - {using gas}
C22C1/1042 - {by atomising
C22C19/03 - based on nickel
C22C32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides whether added as such or formed in situ
C22C32/0015 - {with only single oxides as main non-metallic constituents}
C22C32/0021 - {Matrix based on noble metals, Cu or alloys thereof}
C22C49/02 - characterised by the matrix material
C22C5/02 - Alloys based on gold
C22C5/06 - Alloys based on silver
C22C9/00 - Alloys based on copper

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/12014 - having metal particles
Y10T428/12056 - Entirely inorganic
Y10T428/2982 - Particulate matter [e.g., sphere, flake, etc.]
Y10T428/2991 - Coated
Y10T428/2993 - Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]

Show less

DOE Contract Number:: W-7405-ENG-82

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 May 09

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Anderson, Iver E, and Terpstra, Robert L. Dispersoid reinforced alloy powder and method of making.  United States: N. p., 2014. 
        Web.

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                    Anderson, Iver E, & Terpstra, Robert L. Dispersoid reinforced alloy powder and method of making.  United States.

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                    Anderson, Iver E, and Terpstra, Robert L. Tue .  
        "Dispersoid reinforced alloy powder and method of making".  United States.  https://www.osti.gov/servlets/purl/1160271.

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@article{osti_1160271,

  title        = {Dispersoid reinforced alloy powder and method of making},

  author       = {Anderson, Iver E and Terpstra, Robert L},

  abstractNote = {A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. Bodies made from the dispersion strengthened solidified particles exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Oct 21 00:00:00 EDT 2014},

  month        = {Tue Oct 21 00:00:00 EDT 2014}

}

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Similar Records

Title: Dispersoid reinforced alloy powder and method of making

Abstract

Citation Formats

Metal Dispersoid Powder Compositions patent, June 1973

Process for Making Sintered Articles patent, November 1973

Method for preparing magnetic alloy powder by surface nitriding patent, September 1975

Dispersion strengthened ferritic alloy for use in liquid-metal fast breeder reactors (LMFBRS) patent, February 1978

Hard ferrite powder and process for the preparation thereof patent, June 1982

Hard magnetic alloys of a transition metal and lanthanide patent, September 1983

Preparation of hard magnetic alloys of a transition metal and lanthanide patent, August 1985

Method for making rare-earth element containing permanent magnets patent, April 1986

Process for producing permanent magnet materials patent, July 1986

Method for generating fine sprays of molten metal for spray coating and powder making patent, October 1986

Powder-metallurgical process for the production of a green pressed article of high strength and of low relative density from a heat resistant aluminum alloy patent, July 1988

Method for manufacturing permanent magnets patent, January 1989

High energy product rare earth-iron magnet alloys patent, February 1989

Method for making flakes of RE-Fe-B type magnetically aligned material patent, September 1989

Phosphate-free detergent having a reduced tendency towards incrustation patent, April 1990

Sintered ferro alloy having heat and wear resistance and process for making patent, October 1990

Method of producing nitrogen-strengthened alloys patent, March 1991

Fine hollow particles of metals and metal alloys and their production patent, June 1991

Environmentally stable metal powders patent, December 1991

Process for producing powdered aluminum alloys patent, February 1992

Producing void-free metal alloy powders by melting as well as atomization under nitrogen ambient patent, May 1992

Atomizing nozzle and process patent, June 1992

Method and equipment for microatomizing liquids, preferably melts patent, March 1993

Atomizing apparatus and process patent, March 1993

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions patent, November 1994

Method of making environmentally stable reactive alloy powders patent, December 1994

Sintered metal bodies and manufacturing method therefor patent, June 1995

Highly rigid composite material and process for its manufacture patent, October 1995

Fe-based sintered alloy having wear resistance patent, February 1996

Alloy having excellent corrosion resistance and abrasion resistance, method for producing the same and material for use in production of the same patent, March 1997

Iron-based metallurgical compositions containing flow agents and methods for using same patent, July 1998

Strengthening of metallic alloys with nanometer-size oxide dispersions patent, June 1999

Oxide-dispersion strengthening of porous powder metalurgy parts patent, April 2002

Production process for Fe-based sintered alloy valve seat patent-application, July 2004

Ni-based sintered alloy patent-application, May 2005

Metal Dispersoid Powder Compositions
patent, June 1973

Process for Making Sintered Articles
patent, November 1973

Method for preparing magnetic alloy powder by surface nitriding
patent, September 1975

Dispersion strengthened ferritic alloy for use in liquid-metal fast breeder reactors (LMFBRS)
patent, February 1978

Hard ferrite powder and process for the preparation thereof
patent, June 1982

Hard magnetic alloys of a transition metal and lanthanide
patent, September 1983

Preparation of hard magnetic alloys of a transition metal and lanthanide
patent, August 1985

Method for making rare-earth element containing permanent magnets
patent, April 1986

Process for producing permanent magnet materials
patent, July 1986

Method for generating fine sprays of molten metal for spray coating and powder making
patent, October 1986

Powder-metallurgical process for the production of a green pressed article of high strength and of low relative density from a heat resistant aluminum alloy
patent, July 1988

Method for manufacturing permanent magnets
patent, January 1989

High energy product rare earth-iron magnet alloys
patent, February 1989

Method for making flakes of RE-Fe-B type magnetically aligned material
patent, September 1989

Phosphate-free detergent having a reduced tendency towards incrustation
patent, April 1990

Sintered ferro alloy having heat and wear resistance and process for making
patent, October 1990

Method of producing nitrogen-strengthened alloys
patent, March 1991

Fine hollow particles of metals and metal alloys and their production
patent, June 1991

Environmentally stable metal powders
patent, December 1991

Process for producing powdered aluminum alloys
patent, February 1992

Producing void-free metal alloy powders by melting as well as atomization under nitrogen ambient
patent, May 1992

Atomizing nozzle and process
patent, June 1992

Method and equipment for microatomizing liquids, preferably melts
patent, March 1993

Atomizing apparatus and process
patent, March 1993

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions
patent, November 1994

Method of making environmentally stable reactive alloy powders
patent, December 1994

Sintered metal bodies and manufacturing method therefor
patent, June 1995

Highly rigid composite material and process for its manufacture
patent, October 1995

Fe-based sintered alloy having wear resistance
patent, February 1996

Alloy having excellent corrosion resistance and abrasion resistance, method for producing the same and material for use in production of the same
patent, March 1997

Iron-based metallurgical compositions containing flow agents and methods for using same
patent, July 1998

Strengthening of metallic alloys with nanometer-size oxide dispersions
patent, June 1999

Oxide-dispersion strengthening of porous powder metalurgy parts
patent, April 2002

Production process for Fe-based sintered alloy valve seat
patent-application, July 2004

Ni-based sintered alloy
patent-application, May 2005